Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-28519— arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution

Quick assessment

Affected
Tuya arduino-TuyaOpen
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

arduino-TuyaOpen是Tuya开源的一个基于Arduino的物联网开发框架。 arduino-TuyaOpen 1.2.1之前版本存在安全漏洞，该漏洞源于DnsServer组件存在基于堆的缓冲区溢出，可能导致执行任意代码。

CVSS 8.8 · High EPSS 0.43% · P36
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-28519

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
arduino-TuyaOpen before version 1.2.1 contains a heap-based buffer overflow vulnerability in the DnsServer component. An attacker on the same local area network who controls the LAN DNS server can send malicious DNS responses to overflow the heap buffer, potentially allowing execution of arbitrary code on affected embedded devices.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
arduino-TuyaOpen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
arduino-TuyaOpen是Tuya开源的一个基于Arduino的物联网开发框架。 arduino-TuyaOpen 1.2.1之前版本存在安全漏洞，该漏洞源于DnsServer组件存在基于堆的缓冲区溢出，可能导致执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tuya arduino-TuyaOpen 0 ~ 1.2.1 -

II. Public POCs for CVE-2026-28519

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 13936 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-28519

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-28519 (2)

Vendor Pages for CVE-2026-28519 (1)

Same Patch Batch · Tuya · 2026-03-15 · 4 CVEs total

CVE-2026-28520 8.4 HIGH arduino-TuyaOpen WiFiMulti Single-Byte Buffer Overflow Remote Code Execution
CVE-2026-28521 7.7 HIGH arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure
CVE-2026-28522 6.5 MEDIUM arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service

IV. Related Vulnerabilities

Same product: arduino-TuyaOpen
Same vendor: Tuya
Same weakness: CWE-122

V. Comments for CVE-2026-28519

No comments yet

Leave a comment